how to convert digital data into analog data using matlab code?

225 ビュー (過去 30 日間)
how to convert digital data into analog data using matlab code? and vice versa... i.e., converting back analog data into digital data?
  2 件のコメント
Sharada Reddy
Sharada Reddy 2017 年 1 月 31 日
can you tell me how is the DAC in matlab works..? Any codes to convert digital into analog signal

サインインしてコメントする。

採用された回答

Azzi Abdelmalek
Azzi Abdelmalek 2013 年 10 月 25 日
編集済み: Azzi Abdelmalek 2013 年 10 月 25 日
U=10; % range signal from 0 to 10
n=3 % number of bits
q=U/(2^n-1) % quantization interval
t=0:0.1:10; % your time vector
y=abs(10*sin(t)); % your signal
% -------convert to a digital signal yd-----------
a=fix(y/q);
yd=dec2bin(a,n)
% ------you can calculate the signal yq ----------
yq=a*q
%-------------------------------------------------
plot(t,y,'r')
hold on
plot(t,yq,'g')
hold off
  2 件のコメント
Walter Roberson
Walter Roberson 2017 年 1 月 20 日
The original question also asked "and vice versa"

サインインしてコメントする。

その他の回答 (2 件)

po-wei huang
po-wei huang 2020 年 4 月 18 日
You can try this sample. Here contain DAC procedure. (But quantizing is skipped.)

Walter Roberson
Walter Roberson 2020 年 4 月 18 日
The only built in facility for converting digital to analog are the ones that output to audio devices such as sound() or audiodevicewriter, unless you want to count graphics operators. Or if you want to include the ability to set and clear DTR on a serial port. Everything else needs to talk to a digital to analog converter.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by